W. H. Wilkins, Caroline the Illustrious, vol. 1… (1901)
“ John Erskine, eleventh Earl of Mar, who had raised the standard of James in Scotland, was a man of great courage and some ability, but he acted too much upon impulse, and as a general he was unskilful, and lacking in decision and command. Like218 many other public men during the reign of Anne, he vacillated between Whig and Tory, and on the accession of George the First he professed his devotion to the House of Hanover. ”
